发几道面试题

athlor

1. when you get this listing you see all the processes are named the seemingly benign "bash". How would you go about finding out what commands are REALLY being run?


2. You want to make a simple web-based application for organizing your recipes into categories. A recipe can be in multiple categories and a category can have multiple recipies. You expect to have about 12,000,000 recipes (for real!) and 300 categories. Please submit the create statements for any and all mysql tables you'd need for this project. (A recipe is just a single text field.)


3. Please submit a bash script to get a list of all users on a server with more than 100MB of mail. (Mail is kept in /home/username/Mail/ for each user.)


4. Please submit your FAVORITE joke!

bbgg1983

1. 只恨英文水平太差

复制代码

expert1

JB第三个压根不熟悉邮件服务器。我估计也就是find +awk简单的玩意而已。
前2个看不懂是什么意思。

rdcwayx

1. "ps -e " 的话，只能看到bash, 要用：  ps -ef 可以看到全命令，如果还要最全，要用：  /usr/ucb/ps -auwwwx

3. du -sk /home/*/Mail |awk '{if ($1>100000) {split($2,a, "/"); print a[3]}}'

4. 办公室里女白领要男同事讲一个既短小又有内涵的黄段子。

男士沉思片刻说了八个字：“我是锄禾，你是当午！”

expert1

回复 5# rdcwayx


    awk '{$1>100000}' ???

awk '$1>100000'

justlooks

1，略

2，多对多关系设计

3，(for i in `awk -F':' '{print $1}' /etc/passwd`;do if [ -d "/home/$i/mail" ];then du -sch /home/$i/mail;fi;done) |grep -P "\d{3,}M|\d+G"
没算T级的

4，略

BangBull

回复 5# rdcwayx


    这个笑话好啊 ， 如果面试官是个女的 ... ...  

expert1

laohuanggua

第三个问题：请提供一个脚本列出服务器上所有的收到100MB以上邮件的用户。

俩方案都没测试！仅供参考。

for username in `ls -al /home`
do
if [[  `du -sh /home/$username/Mail|cut -f1` -gt 100M ]]
echo "$username Maildir is bigger than 5MB!";
fi
done

或者

find /home -type d -size +100m |awk -F"/"'/$1==home && $3=Mail/{print $2}'